CSL - 4-Port USB 3.0 (SuperSpeed) PCIe interface card (PCI Express) | Renesas chipset | 15 pin SATA power connector | maximum transfer rate: 5Gbps / s | Plug & Play | USB 2.0 and USB 1.1 backwards compatible (Electronics) 4
CSL - 4-Port USB 3.0 (SuperSpeed) PCIe interface card (PCI Express) | Renesas chipset | 15 pin SATA power connector | maximum transfer rate: 5Gbps / s | Plug & Play | USB 2.0 and USB 1.1 backwards compatible (Electronics)
Some external USB 2 or USB 3 drives are recognized, others not. No idea why. I work with Windows 8.1 x64. I have received a new card and now it's better. All USB 3 drives are detected. Often, however, a drive letter must be assigned to the board at the beginning. There are still 2 USB sticks and USB 1, 1 plates which are not always recognized, but for me it's OK, the hardware was especially older.